RAMSES II Raman Search for Extragalactic Symbiotic Stars

Symbiotic stars (SySts) are long-period interacting binaries composed of a hot compact star, an evolved giant star, and a tangled network of gas and dust nebulae. Presently, we know 252 SySts in the Milky Way and 62 in external galaxies. However, these numbers are still in striking contrast with the...

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Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2018-08, Vol.14 (S343), p.347-348
Main Authors: Angeloni, Rodolfo, Gonçalves, Denise R., Diaz, Ruben J.
Format: Article
Language:English
Subjects:
Astronomy
Galaxies
Giant stars
Milky Way
Nebulae
Photometry
Stars & galaxies
Stellar evolution
Symbiotic stars
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Summary:Symbiotic stars (SySts) are long-period interacting binaries composed of a hot compact star, an evolved giant star, and a tangled network of gas and dust nebulae. Presently, we know 252 SySts in the Milky Way and 62 in external galaxies. However, these numbers are still in striking contrast with the predicted population of SySts in our Galaxy. In this contribution, I present the concept and the early results from RAMSES II (Raman Search for Extragalactic Symbiotic Stars), a Gemini/GMOS Upgrade Project which makes use of the Raman OVI 6830Å band as a powerful photometric tool to identify new SySts, within and beyond the Galaxy.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921318007536